flutter web Error: [firebase_storage/object-not-found] No object exists at the desired reference.

[akmodillo]

I hope to anyone can solve the problem I m workin on flutter web ,started a week but I got some error when I uploaded image storage and cloud store

my codes uploaded storage but image not upload store can anyone fix this situation?

service cloud.firestore { match /databases/{database}/documents { match /{document=**} { allow read; allow write; } } }

firebase_core: ^0.5.3
cloud_firestore: ^0.14.4
firebase: ^8.0.0
firebase_storage: ^5.2.0

<script src="https://www.gstatic.com/firebasejs/7.20.0/firebase-firestore.js"></script> <script src="https://www.gstatic.com/firebasejs/7.20.0/firebase-storage.js"></script>

Future<String>uploadBannerImageToDb(url)async{ String downloadUrl = await storage.ref(url).getDownloadURL(); if(downloadUrl!=null){ firestore.collection('slider').add({ 'image' : downloadUrl }); } return downloadUrl; }

void uploadImage({@required Function(File file) onSelected}) { InputElement uploadInput = FileUploadInputElement()..accept = "image/*"; uploadInput.click(); uploadInput.onChange.listen((event) { final file = uploadInput.files.first; final reader = FileReader(); reader.readAsDataUrl(file); reader.onLoadEnd.listen((event)async{ onSelected(file); }); }); }

void uploadStorage() { //upload selected image to firebase storage final dateTime = DateTime.now(); final path = 'bannerImage/$dateTime'; uploadImage(onSelected: (file) { if (file != null) { setState(() { _fileNameTextController.text = file.name; _imageSelected = false; _url = path; }); fb .storage() .refFromURL('gs://groceryapp-fcb53.appspot.com') .child(path) .put(file); } }); }

`
onPressed: () {
progressDialog.show();
_services
.uploadBannerImageToDb(_url)

                          .then((downloadUrl) {

                        if (downloadUrl != null) {
                          progressDialog.dismiss();
                          _services.showMyDialog(
                            title: 'New Banner Image',
                            message: 'Saved Banner Image Succesfully',
                            context: context,
                          );
                        }
                      });
                    },

`

Error: [firebase_storage/object-not-found] No object exists at the desired reference.
at Object.throw_ [as throw] (http://localhost:52970/dart_sdk.js:5348:11)
at reference_web.ReferenceWeb.new.getDownloadURL (http://localhost:52970/packages/firebase_storage_web/src/reference_web.dart.lib.js:84:21)
at getDownloadURL.throw ()
at http://localhost:52970/dart_sdk.js:39197:38
at _RootZone.runBinary (http://localhost:52970/dart_sdk.js:39053:58)
at _FutureListener.thenAwait.handleError (http://localhost:52970/dart_sdk.js:34046:48)
at handleError (http://localhost:52970/dart_sdk.js:34610:51)
at Function._propagateToListeners (http://localhost:52970/dart_sdk.js:34636:17)
at _Future.new.[_completeError] (http://localhost:52970/dart_sdk.js:34482:23)
at async._AsyncCallbackEntry.new.callback (http://localhost:52970/dart_sdk.js:34521:31)
at Object._microtaskLoop (http://localhost:52970/dart_sdk.js:39335:13)
at _startMicrotaskLoop (http://localhost:52970/dart_sdk.js:39341:13)
at http://localhost:52970/dart_sdk.js:34848:9